Sikorsky Firefly: Perbedaan antara revisi

'''Sikorsky Firefly''' adalah sebuah [[helikopter]] [[listrik]] yang dibangun untuk tujuan penelitian oleh [[Sikorsky Aircraft]]. Disebut "helikopter semua-listrik pertama" di dunia. Firefly adalah helikopter Sikorsky S-300C dimodifikasi dengan [[mesin]] digantikan oleh [[motor listrik]] dan dua kemasan [[baterai]] [[lithium]]-ion. Helikopter dapat terus terbang hanya dengan pilot, tidak ada penumpang, dan beroperasi selama 12 sampai 15 menit. Ia memiliki kecepatan tertinggi 80 knot, atau sekitar 92 &nbsp;mph.<ref name="sajb">Burgeson, John, [https://www.ctpost.com/news/article/Sikorsky-rolls-out-first-all-electric-helicopter-590195.php "Sikorsky to debut first all-electric helicopter"], ''Connecticut Post'' of Bridgeport, Connecticut, July 25, 2010 </ref><ref name="gtm">Dickinson, Boonsri, [https://www.greentechmedia.com/articles/read/an-all-electric-helicopter-will-it-fly " An All-Electric Helicopter: How Far Will It Fly? Is Project Firefly at Silkorsky Innovations the start of silent flight?"], ''Greentech Media'', August 20, 2010, retrieved May 1, 2018</ref><ref name="rwds">Smith, Dale, [http://www.rotorandwing.com/2011/01/12/all-electric-sikorsky-firefly-setting-the-curve/ "All-Electric Sikorsky Firefly: Setting the Curve"] {{Webarchive|url=https://web.archive.org/web/20201103090901/https://www.rotorandwing.com/2011/01/12/all-electric-sikorsky-firefly-setting-the-curve/ |date=2020-11-03 }}, January 12, 2011, Rotor and Wing International, retrieved May 1, 2018</ref><ref name="aino">Dubois, Thierry [https://www.ainonline.com/aviation-news/2011-03-06/electric-firefly-will-feel-conventional-s-300c-says-sikorsky "Electric Firefly will feel like a conventional S-300C, says Sikorsky"], March 6, 2011, AIN Online, retrieved May 1, 2018</ref><ref>News release, [https://web.archive.org/web/20131203011019/http://www.sikorsky.com/About+Sikorsky/News/Press+Details?pressvcmid=989b1cb3a2be9210VgnVCM1000004f62529fRCRD "Sikorsky Introduces “Project Firefly” Electric Helicopter Demonstrator"], July 19, 2010, Sikorsky Aircraft, Internet Archive December 3, 2013, retrieved May 1, 2018</ref>

* [http://www.sikorsky.com/About+Sikorsky/News/Press+Details?pressvcmid=989b1cb3a2be9210VgnVCM1000004f62529fRCRD Sikorsky Aircraft] {{Webarchive|url=https://web.archive.org/web/20131203011019/http://www.sikorsky.com/About+Sikorsky/News/Press+Details?pressvcmid=989b1cb3a2be9210VgnVCM1000004f62529fRCRD |date=2013-12-03 }} news release announcing the new helicopter